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Interior Live Oak, Highland Live Oak, Sierra Live Oak
Quercus wislizeni

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Family: Fagaceae (fag-AY-see-ee) (Info)
Genus: Quercus (KWER-kus) (Info)
Species: wislizeni (wis-LIZ-en-ee) (Info)
Synonym:Quercus wislizeni var. wislizeni
Synonym:Quercus wislizenii
Synonym:Quercus wislizenii var. wislizenii

Category:

Trees

Height:

20-30 ft. (6-9 m)

30-40 ft. (9-12 m)

over 40 ft. (12 m)

Spacing:

20-30 ft. (6-9 m)

Hardiness:

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Sun to Partial Shade

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Inconspicuous/none

Bloom Time:

N/A

Foliage:

Grown for foliage

Evergreen

Smooth-Textured

Other details:

Average Water Needs; Water regularly; do not overwater

Provides winter interest

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Paradise, California

Roseville, California

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Jun 24, 2011, ogon from Paradise, CA (Zone 9a) wrote:

A slow growing oak with evergreen, angular, holly-like leaves. Grows wild in the foothills of the Sierra Nevada. Young plants are unruly and shrubby, but eventually take on a cleaner form as they mature.